Gray Slope Similarity Correlation's Application between each Step' Length and the Total Length in men's Triple Jump

According to the basic idea of gray correlation analysis,a new correlation degree model of gray slope similarity is introduced to sports science and research on the basis of gray slope correlation model.It is indicated that this model could satisfy similarity.It is found that this model makes good use of the sequence's information of every point and its positive or negative correlation,and the result of gray correlation analysis by this model is objective and reliable.It shows that the model is easy for calculating and applicable through the analyses of living examples.